Once again, consider a circuit with two identical bulbs that are connected in series. Do not set up this circuit until you have completed the predictions below.
Prediction:
Predict what happens to the bulb when the bulb socket is unscrewed from its socket.
Prediction:
Predict which is bigger: the voltage across bulb B or the voltage across the empty socket.
Set up the circuit and use a voltmeter to check your predictions.
Question 10:
Explain how the rule you wrote in question can be used to explain your observations.
Finally, consider the circuit shown at the right that contains two identical bulbs and a switch. Do not set up the circuit until you have completed the prediction.
Prediction:
Predict what happens to the brightness of the two bulbs when the switch is closed.
Set up the circuit and check your prediction.
Question 11:
Explain how the rule you wrote in question can be used to help explain your observation.